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"Did Global Warming Intensify the Derecho in Washington, D.C.?"

"The June 29 derecho, which caused widespread damage in Washington, D.C. blossomed to full fury in a record hot environment. Could the heat added to the atmosphere from manmade greenhouse gases have provided extra fuel to this explosive storm?

The amount of energy available to this storm was extreme and, wundergound weather historian Chris Burt called the number of all-time heat records set around the time 'especially extraordinary.'

But as I wrote the day after the storm, connecting global warming to the derecho is a complicated and controversial question."